User Manual
In–Service Calibration – continued
SC4812ET BTS Optimization/ATP — CDMA LMF
Jan 2002
G-16
Table G-5: In–Service Calibration
Step Action
4 Add the spectrum analyzer power delta to the Cable Loss.
– To view the cable loss file, click Util>Examine>Cable Loss>TX or RX.
– Add the value computed in Table G-1, Table G-2, or Table G-3 to the TX Cable Loss.
NOTE
Be sure to include the sign of the value. The following examples are included to show the mathematics
and do not represent actual readings:
– Example: 5.65 dBm + 0.55 dBm = 6.20 dBm
– Example: 5.65 dBm + (–0.29 dBm) = 5.36 dBm
– Example: –5.65 dBm + 0.55 dBm = –5.10 dBm
– Example: –5.65 dBm + (–0.29 dBm) = –5.94 dBm
5 Input the Coupler Loss for the TX and RX tests:
– Click Util>Edit>Coupler Loss>TX or RX from the menu bar at the main window.
– Input the appropriate coupler loss for the target carrier(s) by referring to the information taken at
the time of BTS installation.
– Click the Save button.
– Click the Dismiss button to close the window.
– To view the coupler loss file, click Util>Examine>Coupler Loss>TX or RX.
6 Have the CBSC operator put the redundant BBX OOS_MANUAL.
! CAUTION
Be sure to download OOS devices only. Loading in–service devices takes them OUT OF SERVICE
and can result in dropped calls.
The code file version numbers must match the version numbers on the other cards in the frame. If the
numbers do not match, the site may go OUT OF SERVICE.
NOTE
Be sure to include the redundant BBX in steps 9, 10, and 11.
7 Download code and data to the target devices:
– Click Tools>Update NextLoad>CDMA to set the code version that will be downloaded.
– Select the BTS(s) you need, check the appropriate code version in the pop up window, and click
the Save button to close.
– Select the target BBX(s) on the C–CCP cage picture.
– Click Device>Download>Code/Data to start downloading code.
– Select the target BBX(s) on the C–CCP cage picture.
– Click Device>Download>Data to start downloading data.
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